# coding: utf-8
# OceanBase Deploy.
# Copyright (C) 2021 OceanBase
#
# This file is part of OceanBase Deploy.
#
# OceanBase Deploy is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OceanBase Deploy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OceanBase Deploy.  If not, see <https://www.gnu.org/licenses/>.


from __future__ import absolute_import, division, print_function


def generate_config(plugin_context, deploy_config, auto_depend=False, *args, **kwargs):
    cluster_config = plugin_context.cluster_config
    stdio = plugin_context.stdio
    success = True
    have_depend = False
    depend = 'prometheus'
    server_depends = {}
    stdio.start_loading('Generate grafana configuration')

    global_config = cluster_config.get_original_global_conf()
    login_password = global_config.get('login_password')
    if login_password:
        login_password = str(login_password)
        if len(login_password) < 5:
            stdio.error("Grafana : the length of configuration 'login_password' cannot be less than 5")
            success = False
        elif login_password == "admin":
            stdio.error("Grafana : configuration 'login_password' in configuration file should not be 'admin'")
            success = False
    else:
        cluster_config.update_global_conf('login_password', 'oceanbase', False)

    for server in cluster_config.servers:
        server_depends[server] = []
        server_config = cluster_config.get_server_conf(server)
        if not server_config.get('home_path'):
            stdio.error("%s grafana : missing configuration 'home_path' in configuration file" % server)
            success = False
        
    if not success:
        stdio.stop_loading('fail')
        return 

    for comp in cluster_config.depends:
        if comp == depend:
            have_depend = True

    if not have_depend and auto_depend:
        cluster_config.add_depend_component(depend)

    stdio.stop_loading('succeed')
    plugin_context.return_true()